Support configurable ingress class name for OSM ingress resources

Change-Id: If0cca9e796b5a85980bfb9c60a1e5c0755240b3e
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/01-export-osm-install-options.sh b/installers/01-export-osm-install-options.sh
index 414a55f..86dc5d0 100755
--- a/installers/01-export-osm-install-options.sh
+++ b/installers/01-export-osm-install-options.sh
@@ -64,6 +64,8 @@
 export MGMT_CLUSTER_CA_FILE=${MGMT_CLUSTER_CA_FILE}
 export OSM_K8S_NGINX_IPADDRESS=${OSM_K8S_NGINX_IPADDRESS}
 export OSM_HELM_TIMEOUT=${OSM_HELM_TIMEOUT}
+export OSM_CLUSTER_INGRESS_CLASS=${OSM_CLUSTER_INGRESS_CLASS}
+export AUX_CLUSTER_INGRESS_CLASS=${AUX_CLUSTER_INGRESS_CLASS}
 EOF
 
 cat "${OSM_HOME_DIR}/user-install-options.rc"